This updated and expanded Second Edition describes the newest wave in the telecommunication revolution and includes information on such ascendent technologies as cellular radio, personal communication systems ащшьф(PCS), very small aperture terminal (VSAT) satellite communication networks, and meteor burst communications, as well as more established techniques such as troposcatter and high frequency (HF, 3-30 MHz) systems 2 edition Автор Роджер Л Фрииман Roger L Freeman.